Improvement in sewing-machine



anna sant WILLIAM. COON EY, OF. BRIDGEPOR'l-, CONNECTICUT.

Letters Patent No. 102,226, dated Apo-tl 26, 1870.

IMPROVEMENT' IN SEWING-MACHINE.

The Schedule referred to in these Letters Patent and making part ofthe sanne.

Toall whom tt mayl concern Be it known that I, WILLIAM OooNnY, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a new and useful Improvement in Feed-Motion for Sewing-Machines and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in.

the art to make and use the same, reference being had to the accompanying drawings forming part of this specification.

The object of this invention is to arrange the feedarms in those sewing-machines used for sewing tubular articles, and Valso in other machines, so as to feed not only longitudinally or transversely of the said cylinders, but at an langle between the two directions, or Ait may be in any direction whatever.

Figure l represents a sectional elevation of a cylinder with my improved apparatus Fignre2 represents a section on the line x a';

o Figre 3 represents a section on the line y i/.of fig. an l Figure 4 represents a plan of part of the cylinder. x Similar letters of reference. indicate corresponding parts.

The feed-arm A is seated in a grooved slice, B, supportedby a vertical pivot, B', on the end of the elevating and depressing leverfC. ,f1

lhe said pivot B is coincident with the axis of the feed-plate E, which turns with it, but the grooved shoe stands as much to one side of the axis as the slots in the feed-plate E are from the center of the said plate, to make room for the needle.

The axis B is capable of being turned around on the lever to any direction it is required for the feed to work, within an angle of ninety degrees, and holds the shoe by friction.

The feed-ami A moves forward and back in the grooved shoe. It is moved forward by the curved end F'of the lever F, and backward by the Spring G.

The said lever'F is pivoted at H to the cylinder, andworked by the cam I downward, and by the spring lcom lete circle and the s col be arranved to turn P f P e completely around, it will work it to an ydegree of the circle.

Thedireot u'p-and-down movement is imparted to the feed-arm by theI lever C pivoted at M, and operated by the cam N on the shaft O and the spring N The cam I is so sha ed 'and arranged relatively to D e I the needle-operating devices that the needle-arm is thrown up previous to the movement of the arm F to give the forward movement, and held up during this movement. Then both levers F and G go down together, the arm C carrying the feed-arm down in a straight line. ,Then the arm F rises and allows lthe feed-arm .to recede under the action of the spring G.

lThe length of the stitch 4may be regulated by a setscrew acting against the heel, or/anyother part of the shoe, or it may be changed byarranging the pivot M i of the lever C to slide back and forth. A

The vertical movements of the curved plate F' and of the shoe B maybe effected by other contrivances; for instance, they may be fitted with attachments working in vertical guides, and be moved up and down byV cranks on rotating or oscillating shafts, or they may have pins working in cam-grooves in cam-plates on rotating or oscillatingshafts. j

It is manifest that I may canse the feed to turn a complete circle, and work to any degree of the circle,

the plate Il" being made to form a continuous circle,

spring, G, the said plate acting against the incline on' the feed-arm, and all substantially as specified.

2. The combination with the feed-arm A and shoe B, wherein it slides, of the lever G, cam N,.shaft O. and spring N, all substantially as specified.

3. The combination with the feed-arm A, shoe B, and lever C, of the curved or circular plate F', shaft O, and spring L, all substantially as specified.`

f The above specification of vmy invention signed by me this 23d day of February, 1870.

VILLIAM COONEY.

\Vitncsses:

GEO. W. Manns, ALEX. F. ROBERTS. 

